Use CreateCrawler com um AWS SDK

Os exemplos de código a seguir mostram como usar o CreateCrawler.

Exemplos de ações são trechos de código de programas maiores e devem ser executados em contexto. É possível ver essa ação no contexto no seguinte exemplo de código:

• Aprender os conceitos básicos

.NET

AWS SDK for .NET

nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS.

    /// <summary>
    /// Create an AWS Glue crawler.
    /// </summary>
    /// <param name="crawlerName">The name for the crawler.</param>
    /// <param name="crawlerDescription">A description of the crawler.</param>
    /// <param name="role">The AWS Identity and Access Management (IAM) role to
    /// be assumed by the crawler.</param>
    /// <param name="schedule">The schedule on which the crawler will be executed.</param>
    /// <param name="s3Path">The path to the Amazon Simple Storage Service (Amazon S3)
    /// bucket where the Python script has been stored.</param>
    /// <param name="dbName">The name to use for the database that will be
    /// created by the crawler.</param>
    /// <returns>A Boolean value indicating the success of the action.</returns>
    public async Task<bool> CreateCrawlerAsync(
        string crawlerName,
        string crawlerDescription,
        string role,
        string schedule,
        string s3Path,
        string dbName)
    {
        var s3Target = new S3Target
        {
            Path = s3Path,
        };

        var targetList = new List<S3Target>
        {
            s3Target,
        };

        var targets = new CrawlerTargets
        {
            S3Targets = targetList,
        };

        var crawlerRequest = new CreateCrawlerRequest
        {
            DatabaseName = dbName,
            Name = crawlerName,
            Description = crawlerDescription,
            Targets = targets,
            Role = role,
            Schedule = schedule,
        };

        var response = await _amazonGlue.CreateCrawlerAsync(crawlerRequest);
        return response.HttpStatusCode == System.Net.HttpStatusCode.OK;
    }

• Para API obter detalhes, consulte CreateCrawlerem AWS SDK for .NET APIReferência.

C++

SDKpara C++

nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS.

        Aws::Client::ClientConfiguration clientConfig;
        // Optional: Set to the AWS Region in which the bucket was created (overrides config file).
        // clientConfig.region = "us-east-1";

    Aws::Glue::GlueClient client(clientConfig);

        Aws::Glue::Model::S3Target s3Target;
        s3Target.SetPath("s3://crawler-public-us-east-1/flight/2016/csv");
        Aws::Glue::Model::CrawlerTargets crawlerTargets;
        crawlerTargets.AddS3Targets(s3Target);

        Aws::Glue::Model::CreateCrawlerRequest request;
        request.SetTargets(crawlerTargets);
        request.SetName(CRAWLER_NAME);
        request.SetDatabaseName(CRAWLER_DATABASE_NAME);
        request.SetTablePrefix(CRAWLER_DATABASE_PREFIX);
        request.SetRole(roleArn);

        Aws::Glue::Model::CreateCrawlerOutcome outcome = client.CreateCrawler(request);

        if (outcome.IsSuccess()) {
            std::cout << "Successfully created the crawler." << std::endl;
        }
        else {
            std::cerr << "Error creating a crawler. " << outcome.GetError().GetMessage()
                      << std::endl;
            deleteAssets("", CRAWLER_DATABASE_NAME, "", bucketName, clientConfig);
            return false;
        }

• Para API obter detalhes, consulte CreateCrawlerem AWS SDK for C++ APIReferência.

Java

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS.

    /**
     * Creates a new AWS Glue crawler using the AWS Glue Java API.
     *
     * @param glueClient  the AWS Glue client used to interact with the AWS Glue service
     * @param iam         the IAM role that the crawler will use to access the data source
     * @param s3Path      the S3 path that the crawler will scan for data
     * @param cron        the cron expression that defines the crawler's schedule
     * @param dbName      the name of the AWS Glue database where the crawler will store the metadata
     * @param crawlerName the name of the crawler to be created
     */
    public static void createGlueCrawler(GlueClient glueClient,
                                         String iam,
                                         String s3Path,
                                         String cron,
                                         String dbName,
                                         String crawlerName) {

        try {
            S3Target s3Target = S3Target.builder()
                .path(s3Path)
                .build();

            List<S3Target> targetList = new ArrayList<>();
            targetList.add(s3Target);
            CrawlerTargets targets = CrawlerTargets.builder()
                .s3Targets(targetList)
                .build();

            CreateCrawlerRequest crawlerRequest = CreateCrawlerRequest.builder()
                .databaseName(dbName)
                .name(crawlerName)
                .description("Created by the AWS Glue Java API")
                .targets(targets)
                .role(iam)
                .schedule(cron)
                .build();

            glueClient.createCrawler(crawlerRequest);
            System.out.println(crawlerName + " was successfully created");

        } catch (GlueException e) {
            throw e;
        }
    }

• Para API obter detalhes, consulte CreateCrawlerem AWS SDK for Java 2.x APIReferência.

JavaScript

SDKpara JavaScript (v3)

nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS.

const createCrawler = (name, role, dbName, tablePrefix, s3TargetPath) => {
  const client = new GlueClient({});

  const command = new CreateCrawlerCommand({
    Name: name,
    Role: role,
    DatabaseName: dbName,
    TablePrefix: tablePrefix,
    Targets: {
      S3Targets: [{ Path: s3TargetPath }],
    },
  });

  return client.send(command);
};

• Para API obter detalhes, consulte CreateCrawlerem AWS SDK for JavaScript APIReferência.

Kotlin

SDKpara Kotlin

nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS.

suspend fun createGlueCrawler(
    iam: String?,
    s3Path: String?,
    cron: String?,
    dbName: String?,
    crawlerName: String,
) {
    val s3Target =
        S3Target {
            path = s3Path
        }

    // Add the S3Target to a list.
    val targetList = mutableListOf<S3Target>()
    targetList.add(s3Target)

    val targetOb =
        CrawlerTargets {
            s3Targets = targetList
        }

    val request =
        CreateCrawlerRequest {
            databaseName = dbName
            name = crawlerName
            description = "Created by the AWS Glue Kotlin API"
            targets = targetOb
            role = iam
            schedule = cron
        }

    GlueClient { region = "us-west-2" }.use { glueClient ->
        glueClient.createCrawler(request)
        println("$crawlerName was successfully created")
    }
}

• Para API obter detalhes, consulte a CreateCrawlerreferência AWS SDKdo Kotlin API.

PHP

SDK para PHP

nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS.

        $crawlerName = "example-crawler-test-" . $uniqid;

        $role = $iamService->getRole("AWSGlueServiceRole-DocExample");

        $path = 's3://crawler-public-us-east-1/flight/2016/csv';
        $glueService->createCrawler($crawlerName, $role['Role']['Arn'], $databaseName, $path);

    public function createCrawler($crawlerName, $role, $databaseName, $path): Result
    {
        return $this->customWaiter(function () use ($crawlerName, $role, $databaseName, $path) {
            return $this->glueClient->createCrawler([
                'Name' => $crawlerName,
                'Role' => $role,
                'DatabaseName' => $databaseName,
                'Targets' => [
                    'S3Targets' =>
                        [[
                            'Path' => $path,
                        ]]
                ],
            ]);
        });
    }

• Para API obter detalhes, consulte CreateCrawlerem AWS SDK for PHP APIReferência.

Python

SDKpara Python (Boto3)

nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS.

class GlueWrapper:
    """Encapsulates AWS Glue actions."""

    def __init__(self, glue_client):
        """
        :param glue_client: A Boto3 Glue client.
        """
        self.glue_client = glue_client


    def create_crawler(self, name, role_arn, db_name, db_prefix, s3_target):
        """
        Creates a crawler that can crawl the specified target and populate a
        database in your AWS Glue Data Catalog with metadata that describes the data
        in the target.

        :param name: The name of the crawler.
        :param role_arn: The Amazon Resource Name (ARN) of an AWS Identity and Access
                         Management (IAM) role that grants permission to let AWS Glue
                         access the resources it needs.
        :param db_name: The name to give the database that is created by the crawler.
        :param db_prefix: The prefix to give any database tables that are created by
                          the crawler.
        :param s3_target: The URL to an S3 bucket that contains data that is
                          the target of the crawler.
        """
        try:
            self.glue_client.create_crawler(
                Name=name,
                Role=role_arn,
                DatabaseName=db_name,
                TablePrefix=db_prefix,
                Targets={"S3Targets": [{"Path": s3_target}]},
            )
        except ClientError as err:
            logger.error(
                "Couldn't create crawler. Here's why: %s: %s",
                err.response["Error"]["Code"],
                err.response["Error"]["Message"],
            )
            raise

• Para API obter detalhes, consulte a CreateCrawlerReferência AWS SDK do Python (Boto3). API

Ruby

SDKpara Ruby

nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS.

# The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations.
# It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources.
# The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages.
class GlueWrapper
  def initialize(glue_client, logger)
    @glue_client = glue_client
    @logger = logger
  end

  # Creates a new crawler with the specified configuration.
  #
  # @param name [String] The name of the crawler.
  # @param role_arn [String] The ARN of the IAM role to be used by the crawler.
  # @param db_name [String] The name of the database where the crawler stores its metadata.
  # @param db_prefix [String] The prefix to be added to the names of tables that the crawler creates.
  # @param s3_target [String] The S3 path that the crawler will crawl.
  # @return [void]
  def create_crawler(name, role_arn, db_name, _db_prefix, s3_target)
    @glue_client.create_crawler(
      name: name,
      role: role_arn,
      database_name: db_name,
      targets: {
        s3_targets: [
          {
            path: s3_target
          }
        ]
      }
    )
  rescue Aws::Glue::Errors::GlueException => e
    @logger.error("Glue could not create crawler: \n#{e.message}")
    raise
  end

• Para API obter detalhes, consulte CreateCrawlerem AWS SDK for Ruby APIReferência.

Rust

SDKpara Rust

nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS.

        let create_crawler = glue
            .create_crawler()
            .name(self.crawler())
            .database_name(self.database())
            .role(self.iam_role.expose_secret())
            .targets(
                CrawlerTargets::builder()
                    .s3_targets(S3Target::builder().path(CRAWLER_TARGET).build())
                    .build(),
            )
            .send()
            .await;

        match create_crawler {
            Err(err) => {
                let glue_err: aws_sdk_glue::Error = err.into();
                match glue_err {
                    aws_sdk_glue::Error::AlreadyExistsException(_) => {
                        info!("Using existing crawler");
                        Ok(())
                    }
                    _ => Err(GlueMvpError::GlueSdk(glue_err)),
                }
            }
            Ok(_) => Ok(()),
        }?;

• Para API obter detalhes, consulte CreateCrawlera AWS SDKAPIreferência do Rust.

Para obter uma lista completa de guias do AWS SDK desenvolvedor e exemplos de código, consulteUsando este serviço com um AWS SDK. Este tópico também inclui informações sobre como começar e detalhes sobre SDK versões anteriores.